Progress in Energy

Clean & Renewable Energy Update

Clean energy is moving from “build more renewables” to build a flexible power system — renewables, batteries, transmission, permitting, demand response, corporate power buying, and grid modernization all have to work together.

Germany hit a renewable-electricity milestone

Renewables supplied a record 58% of Germany’s electricity consumption in the first half of 2026, up nearly three percentage points from the same period last year, according to ZSW and BDEW.

System upgrade: Germany is showing what happens when wind, solar, biomass and other renewable sources become the core of the power mix, not a supplement. The next challenge is keeping expansion aligned with storage, grid upgrades, dispatchable backup and faster energy-market reform.

Europe’s solar boom exposed the flexibility problem

Europe’s solar buildout is producing more clean power, but it is also creating midday oversupply, negative prices, curtailment and falling solar capture rates. Reuters reported that Germany and Spain curtailed more than 3.6 TWh of clean electricity in May 2026 because grid flexibility and storage are not keeping up with solar growth.

System upgrade: The clean-energy transition is shifting from generation alone to flexibility infrastructure: batteries, grid expansion, demand response, smart charging, industrial load shifting, interconnectors and market rules that reward storing and moving clean power when it is abundant.

Britain’s grid bill showed the scale of transmission upgrades

Britain’s National Energy System Operator said the country needs about £89 billion in grid investment by the 2030s, a 53% increase from earlier plans, to manage rising demand from EVs, housing, industry and AI data centers.

System upgrade: Transmission is becoming the backbone of clean energy. Wind farms, solar farms, batteries and offshore energy cannot deliver their full value unless the grid can move power where and when it is needed.

U.S. clean-energy permitting became a major bottleneck

A Wood Mackenzie report found that stalled U.S. permits are putting more than $121 billion of wind, solar and storage investment at risk, with about 92 GW of clean-energy projects facing heightened federal scrutiny.

System upgrade: Clean power is now limited as much by approval systems as by technology. Faster permitting, clearer interconnection rules, environmental review capacity and transmission coordination are now essential energy infrastructure.

The July 4 U.S. tax-credit deadline reshaped solar and wind economics

U.S. developers rushed to begin construction before the July 4, 2026 clean-energy tax-credit deadline to preserve access to federal subsidies. Analysts warned that losing credits could sharply raise clean-power prices just as AI and data centers increase demand.

System upgrade: The U.S. clean-energy market entered a new phase: projects that secured eligibility may continue moving, while later projects face higher costs, more difficult financing and stronger competition from large corporate buyers.

Sodium-ion batteries moved closer to grid-scale relevance

Reuters reported that automakers and energy companies are accelerating sodium-ion battery production as an alternative to lithium-ion batteries. Sodium-ion batteries use more abundant materials and may be especially useful for grid storage, data centers and extreme-temperature environments.

System upgrade: Battery strategy is diversifying. The grid will need different storage tools for different jobs: lithium-ion for fast response, sodium-ion for lower-cost stationary storage, long-duration batteries for multi-day reliability, and thermal or pumped storage where geography allows.

China’s clean-energy finance market strengthened

China Resources New Energy more than doubled on its Shenzhen debut after raising 24.5 billion yuan, about $3.6 billion, in Asia’s largest IPO of 2026. The company operates wind and solar assets and plans to use proceeds for new renewable projects.

System upgrade: Clean energy is being treated as strategic infrastructure in China’s capital markets. The upgrade is not only more panels and turbines; it is the financing capacity to build and operate large renewable portfolios.

China’s energy plan showed a dual-track reality

Reuters reported that China is set to lead both renewable-energy growth and coal consumption. China aims for 50% of electricity from non-fossil sources by 2030, while continuing to use coal for energy security and industrial uses.

System meaning: The global transition is not linear. Clean energy is scaling fast, but energy-security concerns, industrial demand and legacy fuels still shape national decisions.

Private capital moved deeper into clean power platforms

KKR agreed to buy EDF’s North American renewable assets for $4.2 billion, adding wind, solar and battery storage operations in the U.S. and Canada.

KKR and SK also announced a $1.3 billion South Korean renewable-energy platform with about 1.7 GW of operational capacity and a development pipeline targeting 10 GW, aimed partly at AI data centers and semiconductor demand.

System upgrade: Large investors are no longer treating clean energy as a niche ESG play. They are buying renewable platforms as core power infrastructure for AI, manufacturing, electrification and industrial competitiveness.

Heat and rising demand made clean-energy resilience more urgent

Europe’s heatwave disrupted power, transport and productivity, showing that climate adaptation and clean-energy planning must be integrated. Reuters noted that EU climate spending is still weighted far more toward mitigation than adaptation.

System upgrade: Clean energy systems must now be designed for hotter grids, higher cooling demand, wildfire risk, water stress, storm disruption and emergency backup needs.

Bottom line

From June 27 to July 4, the clean-energy sector showed a clear pattern:

The world has enough renewable technology to move faster. The bottleneck is system design.

The practical upgrade is now about connecting:

Solar + wind + batteries + transmission + permitting + flexible demand + local resilience + fair financing.

The next phase of clean energy will be won by communities, regions and companies that can turn renewable generation into reliable, affordable, locally useful power.

What communities and leaders can do now

Map local energy needs, identify rooftops and public land for solar, support community-owned energy projects, prioritize battery storage at critical facilities, push for faster grid interconnection, reduce peak demand, electrify buildings and transport carefully, and make resilience — not just generation — the measure of success.